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Evidence Guide: PMC553051 - Produce structural precast concrete

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

PMC553051 - Produce structural precast concrete

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare mould for casting

  1. Check casting schedule and job specification
  2. Clean and oil moulds according to requirements
  3. Check for mould damage and repair as necessary
Check casting schedule and job specification

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean and oil moulds according to requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Check for mould damage and repair as necessary

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assemble reinforcement cage

  1. Lift preassembled reinforcing sections into mould using good work health and safety (WHS) practice
  2. Assemble additional steel to complete cage to drawings and job specification
  3. Fit additional items, such as base plates, tie plates and lifting devices, according to work instructions
  4. Fit hold-ups and hold-downs as appropriate
  5. Place voids or ducts according to work specifications
  6. Run pre-stressing strands through reinforcing cages as required
  7. Set up guards and comply with WHS requirements for stressing
  8. Tension strands to extension dimensions and/or gauge readings according to works or engineer instructions
  9. Recheck reinforcing cage is in correct position and adjust as necessary
Lift preassembled reinforcing sections into mould using good work health and safety (WHS) practice

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assemble additional steel to complete cage to drawings and job specification

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fit additional items, such as base plates, tie plates and lifting devices, according to work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fit hold-ups and hold-downs as appropriate

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Place voids or ducts according to work specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Run pre-stressing strands through reinforcing cages as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Set up guards and comply with WHS requirements for stressing

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Tension strands to extension dimensions and/or gauge readings according to works or engineer instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Recheck reinforcing cage is in correct position and adjust as necessary

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Close mould and test vibrators

  1. Lift mould sides and additional parts into position and secure to specification
  2. Fit any additional items as required
  3. Fit vibrators to start positions
  4. Test run before casting commences
Lift mould sides and additional parts into position and secure to specification

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fit any additional items as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Fit vibrators to start positions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Test run before casting commences

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Pour concrete

  1. Begin casting in accordance with work instructions
  2. Move vibrators and time vibration as required
  3. Screed top surface flat in preparation for final finish if required
  4. Patch product as required
  5. Clean mould and worksite in accordance with WHS requirements
Begin casting in accordance with work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Move vibrators and time vibration as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Screed top surface flat in preparation for final finish if required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Patch product as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Clean mould and worksite in accordance with WHS requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control concrete quality

  1. Test raw materials as required
  2. Prepare test cylinders and samples as required
  3. Monitor and control concrete mix to keep within specifications
  4. Update all records and file all records and supplier certificates in appropriate place
  5. Raise non-conformance reports as required
Test raw materials as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Prepare test cylinders and samples as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor and control concrete mix to keep within specifications

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Update all records and file all records and supplier certificates in appropriate place

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Raise non-conformance reports as required

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Cure product

  1. Cover and cure mould and test cylinders in accordance with standard procedures and work instructions
  2. Monitor curing to achieve specified stripping strength
Cover and cure mould and test cylinders in accordance with standard procedures and work instructions

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Monitor curing to achieve specified stripping strength

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Strip and store product

  1. Test samples to ensure specific strength has been achieved
  2. Remove mould sides and store ready for cleaning
  3. If applicable, de-stress in accordance with work procedures and sequences
  4. Ensure unit is lifted according to work instructions and moved to store, supported only on points designated on the drawings
Test samples to ensure specific strength has been achieved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Remove mould sides and store ready for cleaning

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

If applicable, de-stress in accordance with work procedures and sequences

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Ensure unit is lifted according to work instructions and moved to store, supported only on points designated on the drawings

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Respond to problems

  1. Identify possible routine and non-routine problems in the equipment or process
  2. Determine problems needing action
  3. Determine possible fault causes
  4. Rectify problem using appropriate solution within area of responsibility
  5. Report problems outside area of responsibility to designated person
Identify possible routine and non-routine problems in the equipment or process

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine problems needing action

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Determine possible fault causes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Rectify problem using appropriate solution within area of responsibility

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Report problems outside area of responsibility to designated person

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Control hazards

  1. Identify hazards from the job to be done
  2. Identify other hazards in the work area
  3. Assess the risks arising from those hazards
  4. Implement measures to control those risks in line with procedures
Identify hazards from the job to be done

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Identify other hazards in the work area

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assess the risks arising from those hazards

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Implement measures to control those risks in line with procedures

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare mould for casting

1.1

Check casting schedule and job specification

1.2

Clean and oil moulds according to requirements

1.3

Check for mould damage and repair as necessary

2

Assemble reinforcement cage

2.1

Lift preassembled reinforcing sections into mould using good work health and safety (WHS) practice

2.2

Assemble additional steel to complete cage to drawings and job specification

2.3

Fit additional items, such as base plates, tie plates and lifting devices, according to work instructions

2.4

Fit hold-ups and hold-downs as appropriate

2.5

Place voids or ducts according to work specifications

2.6

Run pre-stressing strands through reinforcing cages as required

2.7

Set up guards and comply with WHS requirements for stressing

2.8

Tension strands to extension dimensions and/or gauge readings according to works or engineer instructions

2.9

Recheck reinforcing cage is in correct position and adjust as necessary

3

Close mould and test vibrators

3.1

Lift mould sides and additional parts into position and secure to specification

3.2

Fit any additional items as required

3.3

Seal mould

3.4

Fit vibrators to start positions

3.5

Test run before casting commences

4

Pour concrete

4.1

Begin casting in accordance with work instructions

4.2

Move vibrators and time vibration as required

4.3

Screed top surface flat in preparation for final finish if required

4.4

Patch product as required

4.5

Clean mould and worksite in accordance with WHS requirements

5

Control concrete quality

5.1

Test raw materials as required

5.2

Prepare test cylinders and samples as required

5.3

Monitor and control concrete mix to keep within specifications

5.4

Update all records and file all records and supplier certificates in appropriate place

5.5

Raise non-conformance reports as required

6

Cure product

6.1

Cover and cure mould and test cylinders in accordance with standard procedures and work instructions

6.2

Monitor curing to achieve specified stripping strength

7

Strip and store product

7.1

Test samples to ensure specific strength has been achieved

7.2

Remove mould sides and store ready for cleaning

7.3

If applicable, de-stress in accordance with work procedures and sequences

7.4

Ensure unit is lifted according to work instructions and moved to store, supported only on points designated on the drawings

8

Respond to problems

8.1

Identify possible routine and non-routine problems in the equipment or process

8.2

Determine problems needing action

8.3

Determine possible fault causes

8.4

Rectify problem using appropriate solution within area of responsibility

8.5

Report problems outside area of responsibility to designated person

9

Control hazards

9.1

Identify hazards from the job to be done

9.2

Identify other hazards in the work area

9.3

Assess the risks arising from those hazards

9.4

Implement measures to control those risks in line with procedures

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Prepare mould for casting

1.1

Check casting schedule and job specification

1.2

Clean and oil moulds according to requirements

1.3

Check for mould damage and repair as necessary

2

Assemble reinforcement cage

2.1

Lift preassembled reinforcing sections into mould using good work health and safety (WHS) practice

2.2

Assemble additional steel to complete cage to drawings and job specification

2.3

Fit additional items, such as base plates, tie plates and lifting devices, according to work instructions

2.4

Fit hold-ups and hold-downs as appropriate

2.5

Place voids or ducts according to work specifications

2.6

Run pre-stressing strands through reinforcing cages as required

2.7

Set up guards and comply with WHS requirements for stressing

2.8

Tension strands to extension dimensions and/or gauge readings according to works or engineer instructions

2.9

Recheck reinforcing cage is in correct position and adjust as necessary

3

Close mould and test vibrators

3.1

Lift mould sides and additional parts into position and secure to specification

3.2

Fit any additional items as required

3.3

Seal mould

3.4

Fit vibrators to start positions

3.5

Test run before casting commences

4

Pour concrete

4.1

Begin casting in accordance with work instructions

4.2

Move vibrators and time vibration as required

4.3

Screed top surface flat in preparation for final finish if required

4.4

Patch product as required

4.5

Clean mould and worksite in accordance with WHS requirements

5

Control concrete quality

5.1

Test raw materials as required

5.2

Prepare test cylinders and samples as required

5.3

Monitor and control concrete mix to keep within specifications

5.4

Update all records and file all records and supplier certificates in appropriate place

5.5

Raise non-conformance reports as required

6

Cure product

6.1

Cover and cure mould and test cylinders in accordance with standard procedures and work instructions

6.2

Monitor curing to achieve specified stripping strength

7

Strip and store product

7.1

Test samples to ensure specific strength has been achieved

7.2

Remove mould sides and store ready for cleaning

7.3

If applicable, de-stress in accordance with work procedures and sequences

7.4

Ensure unit is lifted according to work instructions and moved to store, supported only on points designated on the drawings

8

Respond to problems

8.1

Identify possible routine and non-routine problems in the equipment or process

8.2

Determine problems needing action

8.3

Determine possible fault causes

8.4

Rectify problem using appropriate solution within area of responsibility

8.5

Report problems outside area of responsibility to designated person

9

Control hazards

9.1

Identify hazards from the job to be done

9.2

Identify other hazards in the work area

9.3

Assess the risks arising from those hazards

9.4

Implement measures to control those risks in line with procedures

Evidence required to demonstrate competence in this unit must be relevant to and satisfy the requirements of the elements and performance criteria and demonstrate the ability to:

read and interpret plans/steel drawings, test results, product specifications, casting schedules, job sheets, procedures, material labels and safety information

check and prepare/position/assemble materials, moulds, formwork/specialised formwork, fittings, reinforcement and equipment to meet specifications

apply tension to strands

cast the product, test raw materials and take samples

cure, strip, destress and store product

monitor key variables, including:

mould condition

amount and consistency of concrete mix

placement and anchorage of reinforcement and fittings

placement of voids and ducts

tension of reinforcement

concrete cover

compaction/vibration

curing conditions

curing time/rate

stripping strength

product integrity and conformance to specification

make adjustments to meet product quality and production output specifications

identify hazards and apply relevant hazard controls

apply safety procedures

· apply housekeeping procedures

· recognise out of specification products, process problems and materials faults

recognise routine and non-routine problems

identify when the operator is able to rectify problems, when assistance is required and who is the appropriate source for assistance

take action to resolve problems or report them to appropriate personnel

distinguish between possible causes of routine problems, including:

raw material/mix variations

mould anomalies

casting/operating conditions

reinforcement abnormalities

process errors

communicate effectively with team/work group and supervisors

complete workplace records

do basic arithmetical manipulations, including additions, subtractions, divisions, fractions and percentages.

Must provide evidence that demonstrates knowledge relevant to their job sufficient to operate independently and to solve routine and non-routine problems, including knowledge of:

principles of casting process

significance to structural concrete products of key factors, including:

concrete cover

role of reinforcement

placement and anchorage of reinforcement and fittings

stressing/destressing

curing

compaction and vibration

formwork/specialised formwork (e.g. voids and ducts)

mould design

mould condition/wear

water-cement ratio

concrete finishing

methods of curing

compaction methods

fabrication methodologies

concrete sampling and testing procedures

physics and chemistry relevant to the equipment/process/materials

the potential effects of variations in raw materials and equipment operation/processes in relation to quality of product

factors which may affect product quality or production output and appropriate remedies

quality requirements at each stage of production

common adjustments in variables and their impact on product quality and production output

routine problems, their probable causes and relevant corrective actions

organisation procedures relevant to the work environment/job role

hazards from critical stages of pre-stressing reinforcement (placement, stressing, de-stressing, cutting, etc)

hierarchy of control

hazards that may arise in the job/work environment and:

their possible causes

potential consequences

appropriate risk controls.

Range Statement

This field allows for different work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included.

Regulatory framework

The latest version of all legislation, regulations, industry codes of practice and Australian/international standards, or the version specified by the local regulatory authority, must be used.

Applicable legislation, regulations, standards and codes of practice include:

health, safety and environmental (HSE) legislation, regulations and codes of practice relevant to the workplace, equipment and production processes and hazardous materials

Australian/international standards relevant to the materials being used and products being made

any relevant licence and certification requirements.

All operations to which this unit applies are subject to stringent HSE requirements, which may be imposed through state/territory or federal legislation, and these must not be compromised at any time. Where there is an apparent conflict between performance criteria and such requirements the legislative requirements take precedence.

Procedures

All operations must be performed in accordance with relevant procedures.

Procedures are written, verbal, visual, computer-based or in some other form, and include one or any combination of:

manufacturer's technical information

job cards

drawings

emergency procedures

work instructions

standard operating procedures (SOPs)

safe work method statements (SWMS)

formulas/recipes

batch sheets

temporary instructions

any similar instructions provided for the smooth running of the plant.

Hazards

Hazards must be identified and controlled. Identifying hazards requires consideration of:

heat, smoke, dust, vapours or other atmospheric hazards

weight, shape, volume of materials to be handled

hazardous products and materials

sharp edges, protrusions or obstructions

slippery surfaces, spills or leaks

electricity

gas

gases and liquids under pressure

noise

rotational equipment or vibration

plant services (steam, condensate, cooling water, etc)

structural hazards

equipment failures

machinery, equipment and product mass

limited head spaces or overhangs

working at heights

working in restricted or confined spaces

other hazards that might arise.

Problems

Routine and non-routine problems must be resolved.

Routine problems are predictable and have known solutions and include one or more of:

slippage, breaking of tensioned strands

mould problems

compaction in areas with high reinforcement content (end blocks and haunches)

compact product with tight bends/clearances

polystyrene blocks (which may be used in formwork to lighten products) may float to surface on vibration

polystyrene blocks may move sideways undetected, reducing wall thickness

variations in cement/water ratio

raw materials supply

product quality problems.

Non-routine problems are unexpected problems or variations of previous problems.

Non-routine problems must be resolved by applying operational knowledge to develop new solutions, either individually or in collaboration with relevant experts, to:

determine problems needing action

determine possible fault causes

develop solutions to problems which do not have a known solution

follow through items initiated until final resolution has occurred

report problems outside area of responsibility to designated person.

Operational knowledge includes one or more of:

procedures

training

technical information, such as journals and engineering specifications

remembered experience

relevant knowledge obtained from appropriate people.

Records and reports

Records include one or more of:

log books/sheets

electronic records

job/work sheets

other records used for the smooth running of the plant.

Reports include one or more of:

paper or electronic-based logs and reports

verbal/radio reports

reporting items found which require action.